View Single Post
Old 01-05-2018, 12:26 PM   #2
el gaitero
Holy smoking keyboard!
 
Join Date: Feb 2005
Location: Estados Unidos
Posts: 6,368
Default Re: Developing steady pressure.

I’ve come across newbies with two ‘flappers’...either a flap + moose or similar redundancy.

I think ,besides 2x resistance,.. the flappers are not in synch opening and closing ...thus...fllluuffppphh-ing.

Imho Simple flappers...plastic or even oldies from a leather boot tongue...work fine if properly tied and maintained.
el gaitero is offline   Reply With Quote